I think this is specific about the notion of "social bots", i.e. bots that are mostly indistinguishable from humans or could even interact with them in a realis

I think this is specific about the notion of "social bots", i.e. bots that are mostly indistinguishable from humans or could even interact with them in a realistic way. Obviously everybody can write a spambot, or click a "post this on twitter" button (which is 90% of what people mistake for "bot posts", anyway).